This isn't a new concept, even in the USA. SV residents can see this (ground floor retail, upstairs residential) embodied in the Two Worlds complex in Mountain

This isn't a new concept, even in the USA. SV residents can see this (ground floor retail, upstairs residential) embodied in the Two Worlds complex in Mountain View, which is at least 30 years old. Problem is, retail space demand is in a death spiral as shopping moves to the online giants. People shift to using local retailers primarily for looking, trying on, or stealing from.